1,720,959 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
A review of stochastic controls solving economic agent problems under uncertainty
Get PDF本稿は不確実性下における経済主体の諸問題を，問題の特徴に応じた確率制御問題として定式化し，それらの解法について概観する。解法の基本となる原理は，Bellmanによって導入された動的計画原理と呼ばれる原理である。本稿では，毎時制御を実施する絶対連続制御，制御を実施する時刻を求める最適停止，状態変数をある範囲内に収めるように制御を実施する特異確率制御・インパルス制御の4種類の確率制御問題について概観する。This paper formulates various economic agents' problems under uncertainty as stochastic control problems in accordance with the characteristics of the problems, and reviews their solutions. The basic principle underlying the solution method is a principle called the dynamic programming principle introduced by Bellman. This paper overviews four types of stochastic control problems: absolutely continuous control, in which control is implemented every time; optimal stopping, in which the timing to implement control is determined; and singular stochastic control and impulse control, in which control is conducted to keep state variables within a certain range.同志社大学商学部100周年記念論文集(Special issue in commemoration of the 100th anniversary of Doshisha College Department of Commerce)departmental bulletin pape
Assessing the value of investment in thermal generation capacity under price ambiguity in electricity and capacity markets
Get PDF本研究は，電力市場と容量市場を考慮した火力発電容量への投資について，基本的な投資評価モデルを構築する。取り分け，両市場の価格について曖昧性が存在する場合を考察する。発電事業者の問題は，最適な投資タイミングを求める問題として定式化される。定式化された問題は，変分不等式を用いて解き，最適な投資タイミングを導出する。さらに，いくつかのパラメータについて感度分析を行い，発電容量投資への示唆を与える。This study develops a basic investment evaluation model for investment in thermal generation capacity considering the electricity and capacity markets. In particular, we consider the case where ambiguity exists about prices in both markets. The power produce's problem is formulated as an optimal stopping problem for capacity investment. The problem is solved by variational inequalities, and the optimal investment timing is derived. Further, we conduct a sensitivity analysis of several parameters and provide implications for capacity investment.特集 経済制度と社会秩序の形成に関する理論実証分析Special issue: Theoretical and empirical studies on the evolution of economic institutions and social order論説(Article)departmental bulletin pape
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